When comparing aCalendar vs Microsoft To-Do, the Slant community recommends Microsoft To-Do for most people. In the question“What are the best to-do list apps for Android?”Microsoft To-Do is ranked 18th while aCalendar is ranked 24th. The most important reason people chose Microsoft To-Do is:

To-Do syncs between your phone and computer, so you can access your to-dos from school, the office, or the grocery store or even while you're traveling around the world.

Pros

Pro

Very convenient user interaction

Switching from day<->week<->month views by swiping laterally is a powerful feature.

Pro

Nice presentation

The three views are very convenient, particularly the week view, which shows the week position inside the month

Pro

Good fullscreen widgets for all views

The app has widgets for day, week and month views.

Pro

Color-coding support

The app has 48 calendar and 12 event colors.

Pro

Lots of customization options

The settings menu is rather detailed and includes a good selection of color themes to choose from, possibility to adjust font-size, set beginning and end of day, ability to choose what views to use and more.

Pro

Lunar calendar support

aCalendar can be set up to use a calendar based on cycles of the lunar phases.

Pro

Free, ad-less version available

This paid version aCalendar+ adds more features like agenda view, home screen widget and the ability to manage Google Calendars. The developer also donates some of the profits from this Pro version to help protect the endangered mountain tapir.

Pro

Available in 30 languages

There are 3o user made translations available for the app, making for a good calendar to use in different countries.

Pro

Can add public holidays to calendar from over 35 countries

For the 30+ available languages for the app, there are holiday calendars available to be added.

Pro

QR and NFC barcode sharing of events

Using both QR codes as well as NFC, users can share events wirelessly and easily

Pro

Useful 3-finger tap to go to today

By utilizing a three finger tap shortcut users can easily got to the today view from anywhere in the app.

Pro

Drag'n'Drop

Drag'n'drop functionality is available in day view with this paid version of the application.

Pro

Multidevice sync

To-Do syncs between your phone and computer, so you can access your to-dos from school, the office, or the grocery store or even while you're traveling around the world.

Pro

Cross-platform

Available on Android, iOS, Windows and web.

Pro

Smart Suggestions

Pro

Reminders and Due Dates

With important to-dos that you really shouldn't forget you can add reminders and due dates—we'll remember them for you. And if you have to-dos that you need to tick off on a daily, weekly or yearly basis you can set up recurring due dates to remind you each and every time.

Pro

Very basic and straightforward

Simple interface and streamlined.

Pro

Infinite color-coded lists

What areas of your life do you want to be more productive in? You can have a color-coded list for each. Now you can quickly add your homework to one list, your groceries to another, your packing list, your work projects and your home DIY projects to yet more lists. You can create as many lists as fits your lifestyle.

Pro

Can also be used as a note-taking app

You can also use To-Do as a note-taking app, adding detailed notes to every to-do—from addresses, to details about that book you want to read, to the website for your favorite café. You can collect all your tasks and notes in one place to help you achieve more.

Cons

Con

Somewhat overwhelming amount of options

Con

Free version is very limiting

Free version of the application does not include common things like the agenda view, actionable notifications or attendee management among many other more advanced features.

Con

A Microsoft Product

Some people have a distaste for Microsoft, and may avoid it for this reason. This includes people who are angry that Wunderlist has been discontinued in favor of this app.

Con

Few features

It doesn't have a lot of features that Wunderlist had, which was discontinued for this app.

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